Kilowatlas

France

Checked on 7 November 2026 · Confidence: medium

Inverter limitNo official plug-in limit found; the market uses 800 W
Panels3 kW threshold for free tolerated surplus (Energy Code L315-5, D315-10)
RegistrationEnedis self consumption agreement (CACSI), free, at any power
BatteriesNot specifically regulated (unverified)
Tenants and ownersBuilding co-owners' consent for exterior changes (unverified)

Enedis states that declaring a self consumption system is mandatory even without feeding into the grid, whatever its power. The declaration uses the CACSI agreement and is free through Enedis Connect.

The self consumption bonus and reduced VAT apply to professionally installed systems with a surplus contract, not to kits you install yourself.

Not yet confirmed

  • An official watt limit for plug-in kits, surplus sale eligibility, VAT and co-ownership rules.

Sources

This is a summary for orientation, not legal advice. Rules change; check with your grid operator before you install.

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